Abstract
The purpose of this paper is to establish some correlations between the main technical parameter with regard to the cement-based materials technology, the 28-day compressive strength, and ultrasonic pulse velocity of standard mortar samples cured at three different conditions—(i) under water at 22 °C; (ii) climatic chamber at 95% RH and 22 °C; (iii) lab ambient, 50% RH, and 22 °C—and after five curing periods of 1, 2, 7, 14, and 28 days. Good correlations for each curing conditions were obtained. All the positive linear relationships showed better R2 than exponential ones. These findings may promote the use of ultrasonic pulse velocity for the estimation of the 28-day compressive strength of standard Portland cement samples within the factory internal quality control.
Highlights
Cement-based materials have been used for different structural and non-structural purposes in building and civil work applications for ages [1]
Standard deviation of flexural strength determined in three mortar specimens and compressive strength tested in six samples are presented
The higher the amount of coal fly ash, the lower two and 28 days compressive and flexural strengths [46]. It is well-known that, on the one hand, cements where V iswithout the pulse velocity, km/s, the thehydration transit time is [2], thebut period time taken the pulse to additions (CEM I)inperform reaction on the of other hand, coal by fly ash cements
Summary
Cement-based materials have been used for different structural and non-structural purposes in building and civil work applications for ages [1]. The concrete sector uses Portland cements as the main component and the applications of different types of Portland cements are tightly dependent on their chemical and physical characteristics [2]. It is well-known that cement-based materials, after hydration, develop complex microstructural changes leading to a peculiar capillary pore network and transport properties for each curing condition [3]. Given that an important durability and mechanical indicator for cement-based materials is the capillary pore network, where ultrasonic non-destructive techniques might be used to characterize these materials. It is increasingly being used to estimate some microstructural [4,5,6,7,8] and mechanical [9,10]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
